Citazione Stile APA (7a Edizione)

ECAFE Regional Conference on Water Resources Development (10th : 1972 : Manila). (1972). [Papers] Held in Manila, Sept. 18-25, 1972. s.n.

Citazione stile Chigago Style (17a edizione)

ECAFE Regional Conference on Water Resources Development (10th : 1972 : Manila). [Papers] Held in Manila, Sept. 18-25, 1972. [Manila: s.n, 1972.

Citatione MLA (9a ed.)

ECAFE Regional Conference on Water Resources Development (10th : 1972 : Manila). [Papers] Held in Manila, Sept. 18-25, 1972. s.n, 1972.